42667775 has 12 divisors (see below), whose sum is σ = 54035232. Its totient is φ = 33407040.

The previous prime is 42667759. The next prime is 42667777. The reversal of 42667775 is 57776624.

It is not a de Polignac number, because 42667775 - 2⁴ = 42667759 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42667777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16982 + ... + 19331.

It is an arithmetic number, because the mean of its divisors is an integer number (4502936).

Almost surely, 2^42667775 is an apocalyptic number.

42667775 is a deficient number, since it is larger than the sum of its proper divisors (11367457).

42667775 is a wasteful number, since it uses less digits than its factorization.

42667775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36370 (or 36365 counting only the distinct ones).

The product of its digits is 493920, while the sum is 44.

The square root of 42667775 is about 6532.0574859687. The cubic root of 42667775 is about 349.4352115507.

The spelling of 42667775 in words is "forty-two million, six hundred sixty-seven thousand, seven hundred seventy-five".